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Tag: "reduces" at biology news

Scientists rid stem cell culture of key animal cells

...for feeder cells," says Xu. "It also significantly reduces the daily labor of preparing the feeder cell-condi...lmost a year. Although the new work "dramatically reduces the possibility of contamination" from animal pathogens, Xu warns that the continued use of serum re...

Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers

...ds of closure are (1) such discontinuous breathing reduces water loss and (2) it enables insects to rid their bodies of carbon dioxide, respiration's byproduct, when the insects are underground. As is true for miners, insects, while underground, are faced with high-carbon-dioxide and low-oxygen amounts, nece...

Breakthrough method in nanoparticle synthesis paves the way for new pharmaceutical and biomedical applications

...es of surfactant (a soluble chemical compound that reduces the surface tension between liquids). One surfactant acts as the template for mesoporous structure, while the other is used to limit the growth of the particles to nanometer dimensions. This method can be used to create a variety of nanoparticles wi...

TEL2 gene cooperates with MYC gene to provoke B-cell lymphomas

...This situation occurs when increased TEL2 activity reduces the cell's ability to trigger apoptosis in response to relentless prodding by MYC to keep multiplying. As the process of apoptosis becomes sluggish, the population of B lymphocytes increases. The greater the number of these cells, the more likely som...

Sexual cooperation: Mating increases longevity in ant queens

... the population. The fact that mates bond so early reduces the conflict between mating partners because both sexes benefit from the queen experiencing a long reproductive phase after the colony reaches sexual maturity. ...

US life expectancy about to decline, researchers say

...cine. The study determines that obesity currently reduces life expectancy by approximately four to nine months. "The magnitude of that effect may sound trivial to some, but in fact it's greater than the negative effect of all accidental mortality, such as car accidents, suicides and homicides combined," sa...

Use of PET can reduce, may eliminate more strenuous drug development trials with animals

...y. In addition, small animal imaging significantly reduces the preclinical evaluation time for therapeutic pharmaceuticals, possibly speeding the way for innovative drugs to patients, said Welch. Since there is no public registry of animal researchers, Welch estimates that there may be as many as 12,000 acad...

Light therapy may combat fungal infections, new evidence suggests

...r that light response. Loss of the same genes also reduces fungal virulence in mice, they reported. Earlier studies had linked the genes to light-sensing in another distantly related fungal lineage, an indication that the fungal light sensor arose early in evolution and may be shared by many extant fungal s...

Buying Time Through Hibernation on Demand

...ellular activity slows to a near standstill, which reduces dramatically an organism's need for oxygen. If such temporary metabolic inactivity ?and subsequent freedom from oxygen dependence ?could be replicated in humans, it could help buy time for critically ill patients on organ-transplant lists and in oper...

U-M team recovers ancient whale in Egyptian desert

...ellular activity slows to a near standstill, which reduces dramatically an organism's need for oxygen. If such temporary metabolic inactivity ?and subsequent freedom from oxygen dependence ?could be replicated in humans, it could help buy time for critically ill patients on organ-transplant lists and in oper...

First technology to remove prions that cause vCJD from blood launched

...ith each additional residency deferral, it further reduces the potential number of people giving blood and can result in serious blood shortages. Despite all these safeguards, the risk of vCJD transmission via blood transfusion has not been eliminated. There is no cure for vCJD and treatment is palliative t...

Researchers develop assay that could be applied to drug screening

...in B, a toxin found in Red Sea sponge, drastically reduces the efficiency of membrane scission and affects many aspects of CCP dynamics." ...

Finding hidden invaders in a Hawaiian rain forest

...the aircraft-based analysis discovered that ginger reduces the amount of nitrogen in the Metrosideros forest canopy--a discovery that was later corroborated by ground-based sampling. Peter Vitousek from Stanford University, who coauthored the paper, commented: "This is the first time where remote sensing sh...

Mouse with designer liver has enhanced glucose tolerance, insulin response

... is to promote signaling in the Erk pathway, which reduces insulin response signals flowing through IRS and Akt proteins. "We propose that Gab1 acts as a negative regulator on insulin signal strength in the liver," said Dr. Feng. "In this work, by making a new liver-specific gene knockout mouse model, we fo...

Thai spice helps cut blood sugar swings

...after HCA ingestion. This delay is good because it reduces the high peaks of glucose, which otherwise would require the body to produce a lot of insulin to deal with the 'meal.' "Finding this delayed absorption is a completely new phenomenon and one that might be useful to follow up: why is it delayed and h...

Researchers find gene that may be at root of potato blight

...the chronic use of chemicals to manage late blight reduces the profit margins of farmers and is not always successful. "In developing countries, late blight also affects subsistence potato production," he continued. For example, a late blight breakout in 2003 brought potato production to a halt in Papua New...

Penn Researchers Use Robotic Surgery

...rm Trans-Oral Robotic Surgery (TORS) which greatly reduces surgical trauma for patients. Their initial findings will be presented Monday, May 16th at 11:45 a.m., at the combined annual meetings of otorhinolaryngology (ear, nose and throat) experts ?the Triologic Society, May 13th through16th, in Boca Raton, ...

Two new retroviruses—transmitted from animals—identified

...rm Trans-Oral Robotic Surgery (TORS) which greatly reduces surgical trauma for patients. Their initial findings will be presented Monday, May 16th at 11:45 a.m., at the combined annual meetings of otorhinolaryngology (ear, nose and throat) experts ?the Triologic Society, May 13th through16th, in Boca Raton, ...

Aircraft Cabin Ventilation Influences The Transmission Of Diseases In-flight

...gens. Proper ventilation within any confined space reduces the concentration of airborne organisms, with one air exchange removing 63% of airborne organisms suspended in that particular space. Computer models of data from an in-flight tuberculosis investigation reveal that doubling ventilation rate in the ca...

$5.1 billion would save 6 million children

...pe b, may drop substantially as more extensive use reduces the price. According to the study authors, full implementation of preventive interventions would reduce the current annual cost of treatment by over 60 percent, due to the projected reduction in child illnesses. Furthermore, the delivery of integrat...

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